Currently, the App with the most reading resources on the market might not be able to fully answer this question because every reading App has its own characteristics and advantages. However, according to my understanding, some of the more popular reading apps include: 1 WeChat: WeChat is very powerful in reading books. You can read e-books through the WeChat Reading App. You can also share your favorite novels with others. 2. Baidu Reading: Baidu Reading is a very popular reading app. It has a large number of e-book resources and supports online reading and offline reading. 3. Jingdong Reading: Jingdong Reading is a reading App under the Jingdong Group. It has a large number of e-book resources to support online reading and offline reading. 4. The Kindle is a specialized e-book reader with a large number of e-book resources and supports a variety of reading modes, including wireless reading and reading lights. The above reading apps were all popular on the market. You can choose the reading App that suits you according to your needs and preferences.